<template>
	<ul>
		<li :style="{opacity}">欢迎来到News组件</li>
		<li>news001 <input type="text"></li>
		<li>news002 <input type="text"></li>
		<li>news003 <input type="text"></li>
	</ul>
</template>

<script>
	export default {
		name:'News',
		data(){
			return{
				opacity:1
			}
		},
		/* beforeDestroy() {
			console.log('New组件即将被销毁了！')
			clearInterval(this.timer)
		}, */
		/* mounted(){
			console.log('mounted',this)
			this.timer = setInterval(()=>{
				this.opacity -= 0.01
				if(this.opacity <= 0) this.opacity = 1
			},16)
		} */
		activated(){
			console.log('News组件被激活了')
			this.timer = setInterval(()=>{
				this.opacity -= 0.01
				if(this.opacity <= 0) this.opacity = 1
			},16)
		},
		deactivated(){
			console.log('News组件失活了')
			clearInterval(this.timer)
		}
	}
</script>